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Stats probability help

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What is the probability that out of 23 randomly chosen people at least 2 shares a birthday?
All the 365 days are equally likely and ignore leap years?????????? :shock:
 
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sorry i could not get your logic could u plz elaborate it!!!!!!!!!!!!!!!
 
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Isn't this the question of the text book ?

Hint is given that: 2 people have different birthday, 3 people have different birthday and so on...

I also didn't get the exact meaning of it...

Asked your teacher ??? Otherwise I can ask ...
 
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